1228118670 has 24 divisors (see below), whose sum is σ = 3193108776. Its totient is φ = 327498288.

The previous prime is 1228118669. The next prime is 1228118677. The reversal of 1228118670 is 768118221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228118677) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6822792 + ... + 6822971.

It is an arithmetic number, because the mean of its divisors is an integer number (133046199).

Almost surely, 2^1228118670 is an apocalyptic number.

1228118670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1228118670 is an abundant number, since it is smaller than the sum of its proper divisors (1964990106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1228118670 is a wasteful number, since it uses less digits than its factorization.

1228118670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13645776 (or 13645773 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

The square root of 1228118670 is about 35044.5241086250. The cubic root of 1228118670 is about 1070.8947214004.

The spelling of 1228118670 in words is "one billion, two hundred twenty-eight million, one hundred eighteen thousand, six hundred seventy".